What is the air quality trend in Pendleton?

Over the past 7 days, Pendleton had an average AQI of 68 based on station measurements. The worst day was 2026-08-07 with AQI 103.

How is Pendleton air quality measured?

Air quality in Pendleton is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Pendleton, United States

Name: Pendleton Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Pendleton, United States.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

138h

PM2.5 Station

138h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-07	103	15–171	40.0 µg/m³	19h	2
2026-08-06	66	17–153	20.5 µg/m³	20h	2
2026-08-05	66	26–157	21.2 µg/m³	16h	2
2026-08-04	74	21–194	27.7 µg/m³	22h	2
2026-08-03	53	4–177	18.8 µg/m³	20h	2
2026-08-02	39	9–95	11.0 µg/m³	21h	2
2026-08-01	77	10–171	26.2 µg/m³	20h	2

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